Finding the Fourth Proportional to 1,665.18, 2,498.10 and 569.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.18 : 2,498.10 = 569.28 : x
2. Step 2: Convert to fraction form
   1,665.18/2,498.10 = 569.28/x
3. Step 3: Cross multiply
   1,665.18x = 2,498.10 × 569.28
4. Step 4: Simplify right side
   1,665.18x = 1,422,118.37
5. Step 5: Solve for x
   x = 1,422,118.37/1,665.18
6. Step 6: Final answer
   x = 854.03